Door-check.



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APPLICATION FILED FEB. 16. i916-y W. SHEPPARD.

DOOR CHECK.

Patented Jan. 30, 1917.

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W. SHEPPARD.

DOOR CHECK.

APPLICATIONHLED FEB. le, 1916.

1,214,230.. Patented la... 30,1917.

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WALTER SHEPEARD, OF TOLEDO, OHIO.

DOOR-CHECK.

Specification of Letters atent.

Fatented Jan. 3G), Mill?.

Application tiled February 16, 1916. Serial No. 78,606.

To all whom it may concern.'

Be it known that l, 1WALTER Snnrrnnn, a citizen of the United States, and a resident of Toledo, in the county of Lucas and State of Ohio, have invented a certain new and useful Door-Check; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this speciiieation.

My invention relates to door checks.

It particularly relates to a check which engages with the licor and yet is so made that it will prevent injury to the floor.

lt is particularly of value when used for checking doors which swing over specially finished or polished floors and to prevent slamming of doors.

A further object of my invention is toprovide a door check which, when used in connection with a slightly raised sill, will operate as a buffer at all times, thus preventing slamming of the door even when the check is placed to the unchecked position with reference to the floor.

further object of my invention is to provide a door check which will prevent rattling of the door when the same is in closed position.

A further object of my invention is to provide a simple, attractive door check which may be cheaply made and readily assembled.

The invention may be contained in many forms of constructions usable for different purposes, all of which come within the purview of my claims hereinafter appended. To show the practicability of my invention l have selected one of such constructions as an example and shall describe it hereinafter.

' The construction selected is illustrated in the accompanying drawings.

Figure l of the drawings illustrates a vertical sectional view of the door check selected for purposes of illustration. Fig. 2 illustrates a side view of the check showing the position of the check as it rides from the sill. Fig. 3 is a side view showing the door check liberated so that it will engage the floor. Fig. l illustrates a front view of the check showing the check located centrally with respect to the lower edge of the door and in position for engagement with the floor. Fig. 5 is a rear view of the door check showing the engaging means in its outermost` position. Fig. G illustrates the check in position to engage the sill of the door only. Fig. 7 illustrates the check vwhen the engaging means is on the top of the sill. Fig. 8 is a horizontal sectional vie v along the lines S-S indicated in Fig. F ig. 9 is a guiding tube, which forms a part of the mechanism of the check. Fig. 10 is a sleeve also contained in the check. Figs. ll, l2 and 13 are plates which are located transversely and also form details on the ineclia nism of the check. Fig. la illustrates the roller, the engaging member, and Fig. l5 illustmtes the pin pressed into the center of the roller and about which the roller turns.

Referring to the figures, l is a casing for containing the details of the mechanism of the check. The casing may be secured by means of screws 2 near the lower edge of the door. rllhe check should be placed in the center of the lower edge of the door, thereby causing the roller to engage the sill before the outer edge of the door passes above the sill and while the door is still open, thereby preventing slamming, as the check begins to operate some little time before the door is closed. llVhen self-closing door devices are attached to the door the check may be placed near the outer lower edge of the door, if preferred, and in such position relative to the lower edge of the door 3 and the sill fl as to permit the mechanism of the check to properly operate, that is, so that the sill will lift the engaging means a certain required distance as hereinafter described.

rThe check is provided with a rubber roller 5, which may be formed of an inner core of relative hard rubber ll and an outer portion of soft rubber l2. rlhe rubber roller is supported on a sleeve 6. The center of the roller is preferably located substantially in the aXis of the sleeve G. T he sleeve (3 is preferably square in cross section but it may be also cylindrical in form, provided suitable means is provided for preventing rotation of the sleeve, it being made square in form to prevent such rotation. The lower end of the sleeve 6 is bifurcated, having the furcations 7. A relative large pin 8 is tightly secured and locked to and between the fureations by means of the screws 9, which are threaded into the pin 8.

The roller 5 may be of soft material in its peripheral portion, while its central portion is formed of a harder rubber. The roller 5 is provided with a central opening 10 which is much smaller than the bearing pin 8. The bearing pin 8 is forced into the opening 10 whereby the body of the roller tightly clamps the bearing pin 3 and thus frictionally engages the pin 8. The pin 8 is held in a iixed relation with respect to the sleeve G to prevent rotation thereof by means of the screws 9 which tightly clamp it to the turcations 7. Also, the roller 5 is preferably a little wider than the distance between the turcations of the sleeve so as to be somewhat tightly pressed by the furcations when the roller is pushed into place between the furcations, to produce, if desired, further frictional engagement between the roller and its supporting or connecting member.

rlhe sleeve 6 extends up through the casing 1 and is connected to a sleeve 15. The sleeves 6 and 15 move over a rod 17 which is secured to a plate 13 located in the top of the casing and against the upper end wall of the casing. The rod 17 forms guide for the sleeves 6 and 15. A plate 2O rests upon the upper end of the sleeve 6. It is provided with three openings, 21 and 22. Guide members, preferably tubes, 23, extend through the openings 21 of the plate 20. Springs 24 are located intermediate the plate 2O and the plate 18, and yieldingly press the plate 20 toward the bottom of the casing 1 and yieldingly against upward movements of the roller 5. A sleeve 30 is located on the sleeve 15 and is movably mounted for longitudinal movements along and around the sleeve 15. A knurled nut 31 is threaded on the upper end of the sleeve 15. A compression spring 32 of large resistance relative to the springs 24 is located on the sleeve 15 and intermediate the upper end of the sleeve 30 and the nut 31. The resistance of the spring 32 is such that when the springs 24 are pressed sufficiently to permit the roller 5 to move to near its uppermost position the resistance of the spring 32 will be about equal to the resistance of the spring 24 tor the purposes hereinafter described.

The sleeve 30 is provided with an arm or handle 35 for the purpose of rotating the sleeve 30 on the sleeve 15. The arm 35 also operates as a coacting engaging member to hold the roller slightly above the floor when the door swings over the floor. The arm 35 extends to the outside or" the casing through the slot 36 located in the front wall of the casing. The front wall of the casing is also lprovided with a recess or notch 37 which eX- tends to the slot 36, into which the arm 35 is insertible when it is raised to a certain position relative to the slot 36, preferably to near the upper end of the slot 36. A suitable spring 38 is provided for yieldingly turning the sleeve 30 to cause the arm 35 to enter the notch 37. The particular spring shown in the drawing is secured at one end to the plate 2O and is located on the sleeve 15. It has an arm portion 39 which engages the arm to cause rotation of the arm 35 to move the arm into the notch 37 when the sleeve 30 has been raised to near the upper end of the slot 36. The downward movement o1l the sleeve 30 is limited by the spring 3S which surrounds the sleeve 15.

The guiding tubes 23 are secured in the plate 18. The tubes 23 are provided with shoulders 40. The reduced portions of the tubes 23 may be inserted in the openings 41 of the plate 1S and then flared so as to clamp or rivet them to the plate 18. The rod 17 may be also secured to the plate 18 in substantially the same way, that is, by inserting its upper end in the opening 42. The lower ends of the tubes 23 are stepped into the holes 43 or the plate 44, which is located within and against the lower end wall of the casing. rl`he plate 44 is also provided with the square opening 45, in which the sleeve G is located.

ln the assembling of the check, the nut 31, the spring 32, the sleeve 30 and the spring 38 are placed on the rod 17, and the springs 24 are placed on the tubes 23, and the plate 20 is placed on the rod 17 and the tubes 23, and the plate 44 is placed on the ends of the rod 23, and the said parts are inserted in the casing. The sleeve 15 is then tightly screwed to the sleeve 6, and they are then inserted through the lower wall of the casing and the plate 44, the sleeve 15 passing over therod 17. The nut 31 is threaded to the sleeve 15.

1n the operation of the door check the arm 35 may be released from the notch 37, which will permit the roller 5 to rest upon the floor when the door is open. llhere being a tight fit and consequently frictional engagement between the roller 5 and the door check, and also frictional engagement with the floor, although the pressure of the springs 24 may be very light, the roller will hold the door in the position in which it may be placed. The holding eiiect of the cheek is of course increased by the increased pressure of the springs 24. When the door is closed the roller will ride up on the sill 4. The arm 35 will enter the recess 37 when the roller rides to near the top of the sill 4. When the door is opened in a subsequent operation the check will be held. to a point above the floor and the door will then swing free. The springs 24 will then push plate 2O down against the pressure of the compression spring 32 until the torsional resistance of the spring 32 eounterbalances the effect of the springs 24. When the door is again closed the roller strikes the sill and is easily raised up on the sill by reason of the the counter-balancing eifect of the spring 32, so that it closes With nearly the same ease that the latch of the door Will pass over the latch plate. rlhis prevents the door from slamming, although it permits the door to swing freely over the Hoor.

In case the door is provided with a self closing door device, and Where additional buer action is not required, the spring 32 should have still greater resistance, thereby holding the roller above the sill, as in F ig. 7, when arm 35 is in notch 87. rllhe roller will hold the door against all drafts or Wind pressure, but the door can be moved to any desired position, Without lifting the roller from the floor. The roller will also ride over the edge of linoleum, carpet, or other slight obstructions.

Having thus described my invention, What I claim as neW and desire to secure by Letters Patent, is,-

l. In a door check, the combination of a rubber roller, an axle, means for securing the axle to prevent rotation thereof, a yieldable rubber roller having an opening smaller than the axle and forced over the axle to frictionally engage therewith, means for securing the roller and the axle to the door and means for yieldingly pressing the roller against the floor.

2. In a door check, the combination of a pair of plates, guiding members located intermediate the plates, springs located on the guiding members, a third plate movable along the guide members and moved by the springs, a rod secured to one of the Erstnamed plates, a sleeve, a roller connected to the sleeve, a second sleeve movable on the first-named sleeve, and springs surrounding the irst-named sleeve, a casing, a nut threaded on one end of the first-named sleeve for locking the said parts in the casing.

3. In a door check, the combination sof an axle, a roller located on the axle and formed of rubber and vvith an opening smaller than the axle, means for securing the axle from rotation, and means for yieldingly connecting the roller and axle to the door.

4L. ln a door check, the combination of a roller, a sleeve connected to the roller, a pin for guiding the sleeve, and secured to the door, a latch engaging member movable relative to the sleeve and a compression spring for yieldingly pressing the latch engaging member toward the Hoor and located intermediate the end of the sleeve andthe latch engaging member, and springs for yieldingly pressing the sleeve downward toward the floor, the latch engaging member adapted to be engaged when the roller rides near to the top of the sill of the door.

5. ln a door check, the combination of a floor engaging member, a latch engaging member located on the floor engaging member and movable along the floor engaging member, a compression spring for yieldingly pressing the latch engaging member toward the floor and located intermediate the floor engaging member and the latch engaging member, and a spring for pressing the floor engaging member toward the floor.

6. In a door check, the combination of a roller, a spring for pressing the roller against the floor over which the door moves, means for laterally clamping the sides of the roller for rendering dilicult the rotation thereof.

7. ln a door check, the combination of a roller, a spring for pressing the roller against the ioor over which the door moves, a member having a yoke for supporting and compressing the sides of the roller.

In testimony whereof, l have hereunto signed my name to this specification.

WALTER SHEPPARD.

opiea of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

